Archaeologists find evidence of a rapid-fire Roman weapon in Pompeii

Pompeii walls show evidence of a rapid-fire Roman weapon. Archaeologists discovered unique four-sided impact marks, suggesting the use of a polybolos, a repeating ballista. This ancient weapon could fire multiple projectiles sequentially. The findings, made using laser scanning, provide the first physical proof of the polybolos, a technology not seen again for two millennia.